Partial Pressure

Dalton's Law states...

• that at a constant temperature the volume of a confined ideal gas varies inversely with its pressure.

• that the total pressure exerted by the mixture of non-reactive gases is equal to the sum of the partial pressures of individual gases

• how gases tend to expand when heated

• that the density of an ideal gas at constant pressure varies inversely with the absolute temperature of the gas.

Dalton's law of...

• Partial Pressure

• Thermodynamics

• Ideal Gas

• Physics

Which container will have lower pressure?

• left

• right

• they both have the same pressure

Which equation represents Dalton's Law?

• e=mc2

• PV=nRT

• P1/T1=P2/T2

• Ptotal=P1, P2, P3...

What is the definition of partial pressure in a gas mixture?

• The pressure that each gas would exert if it occupied the entire volume alone at the same temperature.

• The total pressure exerted by the sum of all gases in a mixture.

• The pressure exerted by the gas molecules when they collide with the walls of a container.

• The decrease in pressure when a gas is mixed with another gas.

In a mixture of gases, the total pressure is 760 mmHg. If the partial pressure of oxygen is 200 mmHg and nitrogen is 500 mmHg, what is the partial pressure of the remaining gas?

• 60 mmHg

• 100 mmHg

• 160 mmHg

• 260 mmHg

Which statement best describes the relationship between gas mixtures and partial pressures according to Dalton's Law?

• The partial pressure of each gas in a mixture is independent of the presence of other gases.

• The partial pressure of a gas decreases as more gases are added to the mixture.

• The partial pressure of a gas is directly proportional to its molecular weight.

• The partial pressure of each gas is determined by the total volume of the gas mixture.

Which of the following is a direct application of Dalton's Law of partial pressures?

• Predicting the boiling point of a liquid mixture.

• Calculating the pressure inside a balloon filled with helium and oxygen.

• Determining the solubility of a gas in water at a given temperature.

• Measuring the speed of sound in air.

If the partial pressures of hydrogen and oxygen in a container are 300 mmHg and 700 mmHg respectively, what is the total pressure in the container?

• 1000 mmHg

• 400 mmHg

• 300 mmHg

• 700 mmHg

Three gases, Ar, N2 and H2 are mixed in a 500L container. Ar has a pressure of 255 torr, N2 has a pressure of 228torr and H2 has pressure of 752torr. What is the total pressure in the container?

• 483torr

• 270torr

• 1235torr